.minus
{
	height: 9px;
	float:left;
	width: 9px;		
	cursor:pointer;	
	cursor:pointer;
	background-image: url(images/minus.gif);
}

.plus
{
	height: 9px;
	width: 9px;	
	float:left;
	border:0;	
	cursor:pointer;	
	background-image: url(images/plus.gif);
}
.blank
{
	width:9px;
	height: 9px;		
	float:left;
	border:0;
	background-image: url(images/blank.gif);
}

.left_space
{
	border-width: 0;
	border: 0;	
	width: 20px;
	border-right-style: none;
}